Osseous Metaplasia of the Eyelid in a Child.

Osteoma cutis is a term applied to bone formation in the dermis or subcutaneous tissue. It is deemed primary when occurring de novo without prior disease or secondary when associated with pre-existing inflammation, neoplasia or trauma. The authors describe a longstanding focal calcified and ossified lesion of the upper eyelid in a healthy 10-year-old girl along with a sterile corneal ulcer. The lesion most likely represented an ossified tarsal cyst or chalazion.